2nd Grade Math Module 8 Review

2nd Grade Math Module 8 Review

Miss. Lawson

Place Value

• Three-digit numbers have 3 digits, each with a place value. We can organize these numbers in a hundreds, tens, and ones mat to show their place value.

• ex. If we have the number 300, 3 is in the hundreds place, 0 is in the tens place and 0 is in the ones place.

• We can use flats, rods, and units to represent three-digit numbers. A flat has a value of 100, a rod has a value of 10, and a unit has a value of 1.

Now let's practice!

Multiple Choice

If we have the number 510, which number is in the hundreds place?

• 5

• 1

• 0

Multiple Choice

If we have the number 337, which number is in the ones place?

• 3

• 7

• 3

Multiple Choice

If we have the number 149, which number is in the tens place?

• 9

• 1

• 4

Comparing Numbers using > and <

• We can show one number is greater than another number by using the > symbol. The opening points to the larger number.

• We can show one number is less than another number using the < symbol. The closed end points toward the smaller number.

• ex.

• 600>200

• 300<500

Let's Practice!

Multiple Choice

True or False, 100 < 500?

• True

• False

Multiple Choice

True or False, 710 > 410?

• True

• False

Multiple Choice

True or False, 800 < 800?

• True

• False

Let's review important vocabulary...

Multiple Select

Flat

• is used in math to model 10

• is used in math to model 1

• is used in math to model 100

Multiple Select

unit

• is used in math to model 1

• is used in math to model 10

• is used in math to model 100

Multiple Select

rod

• is used in math to model 100

• is used in math to model 10

• is used in math to model 1

That is all for math today!

Let's take a 1 minute brain break.. try and find 2 examples of a solid!

We will finish up with a science review when we come back.